set-replication-token

#!/usr/bin/env bash

set -e -u

# shellcheck source=admin/lib/common.inc.bash
source "$(dirname "${BASH_SOURCE[0]}")/lib/common.inc.bash"

HELP=$(cat <<EOH
Usage: $SCRIPT_NAME [option]

Read token and write it to local/secrets/metabrainz_access_token.

Option:
  -f, --force   Overwrite existing token if any.
  -h, --help    Print this help message

Environment variable:
  METABRAINZ_ACCESS_TOKEN_PATH
    This environment variable allows to specify another path to write to.
EOH
)

# Parse arguments

declare -i overwrite=0

if [ $# -eq 1 ]
then
  case "$1" in
    -f|--force)
      overwrite=1
      shift
      ;;
    -h|--help|help)
      echo "$HELP"
      exit 0 # EX_OK
      ;;
    *)
      echo >&2 "$SCRIPT_NAME: unrecognized argument: '$1'"
      echo >&2 "Try '$SCRIPT_NAME --help' for usage."
      exit 64 # EX_USAGE
      ;;
  esac
fi

if [ $# -ne 0 ]
then
  echo >&2 "$SCRIPT_NAME: too many arguments"
  echo >&2 "Try '$SCRIPT_NAME --help' for usage."
  exit 64 # EX_USAGE
fi

declare token=''
while [ -z "$token" ]
do
  read -n 40 -p 'Please enter your MetaBrainz access token (will not be echoed)...' -r -s token
  echo
  if [ ${#token} -ne 40 ]
  then
    echo Token should be 40 characters long, you entered only ${#token}.
    token=''
  fi
done
echo 'Thank you!'

declare -r token_default_path="$MB_DOCKER_ROOT/local/secrets/metabrainz_access_token"
declare -r TOKEN_PATH="${METABRAINZ_ACCESS_TOKEN_PATH:-$token_default_path}"

if [[ -f $TOKEN_PATH && $overwrite -ne 1 ]]
then
  echo >&2 "$SCRIPT_NAME: token file already exists at: '$TOKEN_PATH'"
  echo >&2 "Try '$SCRIPT_NAME --help' for usage."
  exit 73 # EX_CANTCREAT
fi

mkdir -p "$(dirname "$TOKEN_PATH")"
touch "$TOKEN_PATH"
chmod 600 "$TOKEN_PATH"
echo "$token" > "$TOKEN_PATH"

echo "Successfully wrote token in '$TOKEN_PATH'."

# vi: set et sts=2 sw=2 ts=2 :